Kingston 4 GB SDHC Class 2 Flash Memory Card SD2/4GB High Speed Class Rating - Class 2: 2 MB/sec minimum data transfer rate Capacities1 - 4GB, 8GB Compliant - with the SD Card Association card 2.00 specification Secure - built-in write-protect switch prevents accidental data loss Compatible with with SDHC host devices; not compatible with standard SD-enabled devices/readers